| 复配催化体系制备双峰分布的聚乙烯 |
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| 引用本文： | 田锋,陈伟,郑刚,景振华.复配催化体系制备双峰分布的聚乙烯[J].石油化工,2000,29(5). |
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| 作者姓名： | 田锋 陈伟 郑刚 景振华 |
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| 作者单位： | 石油化工科学研究院,北京,100083 |
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| 摘 要： | 利用茂金属加合物和一种Ziegler-Natta钛系催化剂复配而成的催化体系 ,制备相对分子质量呈双峰分布的聚乙烯。考查了复配催化体系中茂金属加合物和钛系催化剂的配比对聚合物相对分子质量、相对分子质量分布及结构性能的影响。
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| 关 键 词： | 相对分子质量双峰分布 乙烯聚合 茂金属加合物 钛系催化剂 甲基铝氧烷 |
Mixed Catal ytic Systems for Preparing Polyethylene with Bimodal Molecular Weight Distri bution |
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| TIAN Feng,CHEN Wei,ZHENG Gang,JING Zhen-hua.Mixed Catal ytic Systems for Preparing Polyethylene with Bimodal Molecular Weight Distri bution[J].Petrochemical Technology,2000,29(5). |
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| Authors: | TIAN Feng CHEN Wei ZHENG Gang JING Zhen-hua |
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| Abstract: | Ethylene polymerization and ethylene/1-hexene co-polymerization using a mixture of metallocene adduct(APE-1) and Zeigler-Natta Ti catalyst were studied.In the case of copolymerization,the catalyst activity increases with decreasing n(Zr)/n(Ti)which shows significant influence on the molecular weight and molecular weight distribution of the copolymer.Catalyst systems with different n(Zr)/n(Ti) give different types of kinetics curve,and have an obvious effect on the flow properties of copolymers.In the case of ethylene homopolymerization,the product exhibits bimodal molecular weight distribution. |
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| Keywords: | Research Institute of Petroleum Processing Beijing 100083 China) Abstract Ethylene polymerization and ethylene/1-hexene co-polymerization using a mixture of metallocene adduct(APE-1) and Zeigler-Natta Ti catalyst were stu |
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